A few of my friends and I were doing the weekly heroic strike where you kill the Cabal leader Valus Ta'aurc. We noticed that gunfire across all enemies has seemingly gotten quieter throughout the game, but also on Valus, we noticed his rockets no longer make sounds when he shoots them. On top of this mentioned bug, we've also noticed that these sound bugs are spread throughout the game. Another one that's a prime example is the tank fight in that same mission. He wasn't making the sounds he normally would through the second gun on his right side. Unfortunately, we also took note that enemies no matter who they were had dulled down sound effects for gunfire, but we also took note that when our ship is traveling between planets we can no longer hear the after burners. This was something that we noticed instantly earlier today. We experienced this with four out of five people. To confirm that it was not just us; I deleted the game from my hard drive, reinstalled, and re-updated, and it did not fix this bug. This was attempted across 6 PS4's in total, all in different locations.